SPC Performance Specialty Shims Kit

Any solid axle 2WD or 4WD vehicle, 2011–2025

Part #: 89899

Overview

The SPC Performance Specialty Shims Kit 89899 is a precision-engineered solution designed to adjust the caster angle on solid axle vehicles. Whether you're looking to improve handling, correct alignment issues, or customize your vehicle's stance, this kit offers a reliable and straightforward way to fine-tune your suspension geometry. Built for enthusiasts and professional mechanics alike, these shims help support optimal steering response and stability across a variety of driving conditions.

Designed for both daily drivers and off-roaders, the SPC Shims Kit provides a versatile approach to vehicle alignment adjustments. By increasing or decreasing caster angle, you can enhance steering feel, improve cornering performance, and support tire wear consistency. The kit's compatibility with a wide range of solid axle 2WD and 4WD vehicles makes it an essential upgrade for those seeking precise alignment modifications without extensive suspension overhaul.

Key Features

The SPC Performance Specialty Shims Kit 89899 offers several key features that make it a valuable addition to your vehicle's suspension system:

• Precision-machined zinc-plated shims for corrosion resistance and durability, ensuring long-lasting performance in demanding conditions.
• Multiple shim sizes and degrees—ranging from 1/2° to 4°—allowing for fine-tuned adjustments to caster angle, tailored to your specific driving needs.
• Designed to fit any solid axle 2WD or 4WD vehicle, providing broad compatibility across various makes and models.
• Twice the coverage with fewer components, reducing inventory complexity and simplifying installation.
• Easy-to-install design that does not require extensive disassembly or specialized tools, making it accessible for DIY enthusiasts and professional technicians alike.
• Helps improve steering response, vehicle stability, and tire wear by providing precise caster adjustments.
• Manufactured by SPC Performance, a trusted name in suspension and alignment components, ensuring quality and reliability.

Construction & Design

The SPC Shims Kit 89899 features high-quality zinc-plated steel shims that resist corrosion and withstand harsh driving environments. The shims are precisely machined to ensure a perfect fit and consistent thickness, allowing for accurate caster adjustments. The kit includes multiple shims with varying degrees and widths, enabling you to customize your alignment with confidence. Its compact design minimizes the need for additional components, streamlining the installation process and reducing potential points of failure.

Performance & Benefits

By installing the SPC Performance Specialty Shims Kit, you can expect improved steering feel, enhanced vehicle stability, and better tire wear. Adjusting caster angle helps support increased steering response and cornering grip, especially beneficial for off-road adventures or spirited driving. The kit's design ensures that your vehicle maintains optimal alignment settings, contributing to safer and more predictable handling characteristics.

Installation & Fitment

The SPC Shims Kit 89899 is designed for straightforward bolt-on installation. No cutting, drilling, or extensive suspension disassembly is required in most cases. Simply position the shims between the axle and the steering components to achieve the desired caster correction. Basic mechanical skills and standard hand tools are sufficient for installation, making it an ideal upgrade for both DIY enthusiasts and professional shops.

• Compatible with any solid axle 2WD or 4WD vehicle.
• Installation typically takes less than a few hours.
• No special tuning or alignment adjustments are necessary after installation, but a professional alignment is recommended for optimal results.

What's Included

• Set of zinc-plated steel shims in various sizes and degrees
• Installation instructions

Ideal For

• Off-road enthusiasts seeking improved steering control
• Performance drivers aiming for precise alignment adjustments
• Mechanics performing suspension upgrades or repairs
• Anyone looking to correct caster angles for better handling and tire wear

Emissions Note

This product is designed for off-road use and may not be legal for street use in all regions. Please check local regulations before installation. It is not a certified emissions modification and is intended for use in vehicles not subject to emissions testing or in off-road applications only.